Stopping mechanism



Dec. l2, 1933. T. H. sEELY 1,939,321

STOPPING MECHANI SM Original Filed Feb. 28, 1927 Patented Dec. 12, `1933v STOPPING MECHANISM v yThomas H. Seely, "Melrose,v Mass., assignor to United ShoeV Machinery Corporation, Paterson,

N.`J., a corporation of New Jersey Original application February 28, 1927, Serial No.

171,388. ary 27, 1930.

Divided and this application Febru- Serial No. 431,896 Y 12 Claims. (Cl. 192-148) This invention relates to mechanisms for controlling the operations of vmachines which yare to be driven through one or more rapid cycles and stopped at a predetermined point in a cycle. The

invention is herein illustrated as embodied in a hand 'method lasting machine such, for example, `as that disclosed in United States Letters Patent No. 1,623,135, granted April 5, 1927, on my application, and in United States LettersV Patent No.

l0 1,777,382, granted Oct. 7, 1930, on my application, of which the present application is a'division. It is `to be understood, however, `that the invention is not restricted in its application to machines of this type butmay be utilized in other I 1li machines having adjustable heads.

In hand method lasting machineathe stopping mechansm'is located in the headof the'machine which is ordinarily adjustable vertically on a supporting column. The stopping mechanism is M controlled by a trip rod which is adjustably secured to a treadle and when the head is adjusted to the height of the operator, the treadle and trip rod have to be disconnected and the operative relation of the trip rod to the stop mechanism is T disturbed, thus necessitating a careful readjustment of the trip rod into -its proper position relatively to the stop mechanism.

It is anA object `of this invention to provide' means whereby such readjustment may be avoid- *.1 ed. Accordingly,a feature of the invention consists in an organization including means for maintaining a manually controlled member in constant relation to the head of the machine when the head is adjusted. In the illustrated machine,

.l the means for maintaining a manually controlled member Ain constant relation to the Vhead comprises an arm clamped at one end to the trip rod and having a slot in its upwardly extending arm which engages a fixed pin on the frame, and an adjusting screw extending into the slot and engaging the pin to limit thedepression of the'arm and the rod. This constructioneliminates the necessity of readjusting the rod in its proper relation to the stop mechanism beforetightening the clamping connection betweenthe vtreadle and the trip rod, thus simplifying the operation of adjusting the head and saving time. i In addition to theabove features, the presen invention includes other novel features and combinations of parts all of which will be hereinafter fully described in connection with the accompanying drawing which shows one mechanical embodiment of the various ."new features and novel combinations of parts.

sents the head of a hand method lasting machine vwith the usual counter-shaft 54 which is con- `shaft- 6.v A roll 78 on the member 74 engages a In the drawing, Y A

Fig. 1 is a view in side elevation, partly broken away and partly in section, of a machine embodying the present invention;

Figi.` 2 is a detail in front elevation, partly in i60 section, of the invention; and l Fig. 3 is an enlarged detail View showing the -spring for releasing the brake.

VReferring to Fig. 1 of the drawing, lreprehaving a main shaft '6 to one endv of which is keyed a pulley 7. Secured to the shaft 6 are various cams and gears which actuate the fastening inserting mechanism 8 and the lasting instrumentalities 10. Reference maybe had to my above-mentioned Letters Patent for -a more detailed description of the above-mentioned mechanism.

As shown in Fig. 1, the machine is provided tinuously driven from a source of power and has lfixed thereto a friction disk 56. A co-operating disk 58 is forced toward the disk V56 by a wedge `60 raised by a treadle lever 62. A' pulley 64 xed to the disk 58'is belted to the pulley 7. The -machine is preferably provided, as shown in Figs.

g l an`d`2, with stop mechanism similar to that disclosed Letters Patent of the United' States No. 1,356,406, granted October 19, 1920, on myapplication. This mechanism comprises a brake shoe 66 -lined' with a piece of leather 68which is formed at one end as ahook to engage one end of the shoe 66 and is 'forcedagainst the inner face of the rim of the pulley 7 to arrest movement ofthe shaft 6 ata predetermined point in 90 the cycle.- The cycle 661s pivoted to a lever "70 which is acted upon to operate the shoe by a spring detent 72 mounted on a member 74 which is arranged to swing on ian eccentric 76 on the beveled end on a vertically movable trip rod 80. At the proper time inthe cycle, provided the trip rod is in its normal depressed position, the eccentric 76 moves the member 74 radially while the roll 78 is in contact with the beveled end of 100 the trip rod 80, forcing Vthe detent 72 against the lever '70 and applying the brake'. The trip-'rod 80 is connected (Fig. 1) by a split clamp operated by a `screw 82 to a member 84 which Vis pivoted at 86 to the treadle lever 62. 105 Depression of the treadle toeng'age the friction disks 56, 58 will concurrently lift the rod 80 and cause its beveled end. (Fig. 2) to swing the member 74 about its operating eccentric' 76 and release the' detent 72 from the end of the lever 110 and the rod 80..

70, the brake shoe being then raised by a suitable spring 79 (Fig. 3). The beveled end of the trip rod 80 is maintained in operative relation to the roll 78 when the screw 82 is released to permit the machine head to be raised or lowered. For

this purpose a sleeve 88 has a sliding fit on the rod 80 and provides a long bearing therefor to minimize wear. The upper end of the sleeve is conical and engages a hole in a portion 90 of the frame, through which the rod extends, to centralize the rod in the hole. On the lower end of the sleeve is a frame-like portion 91 through the lower end of which the rod 80 passes and between which and an adjustable collar 92 is arranged a spring 93 to depress the rod and mainv to the roll '78 i-s maintained when the screw 82 j is loosened. By merely loosening the screw 82 and a clamp screw 98 (Fig. 1v), which holds the neck of the machine head in the column 100, a screw 99 may be turned to adjust the head vertically, it being understood that a splined connection between the rock-shaft 101 and a knee operated lever (not shown), and between the sleeve 103` and the arm 105, permits movement of the rock-shaft and sleeve with the head. Y Having thus described my invention, what I .claim-as new and desire to secure by Letters Patent of the United States is: j

1. In a power-operated machine, a column, a head on the column, means for adjustingthe head relatively to the column, a manually controlled member, means extensibly connected to the member for moving the member relatively to the head to control the operation of the machine, and means for y:maintaining the member in constant relation to the head when the head is adjusted.

' 2. In a power-operated machine, a column, a

f head on the column, means for adjusting kthe Vpoint in its rotation, a treadle,

machine head vertically on the column,v a trip rod, a treadle extensibly connected to the trip rod, and means for maintaining the trip rod in constant relation to the head when the head is being adjusted vertically. j

3. Ina stopping mechanism, the combination ofV a power-operated brake for stopping the machine, a trip rod for releasing the brake when the machine is to be started, a collar on the rod, a spring above the collar adapted to depress the trip rod, a spacing .member between the spring and the machine frame, an arm fixed on the rod and adapted to engage a stop, and an adjustable stop for limiting downward movement of the rod under .the impulse of the spring.

4. In a power-operated machine, a column, va head adjustable on the column having a power driven shaft and an operating instrumentality actuated thereby, a stop mechanism for arrest# ing rotation of the shaft at a predetermined a trip rod, a releasable connection between the treadle and trip rod, a spring for depressing the trip rod, and

.means for maintaining the spring under tension when said connection is released to allow the head `to be adjusted, said means being constructed and arranged to maintain the rod in constant relation to the head when the head is being adjusted.

5. In a stopping mechanism the combination of a power-operated brake for stopping a machine, a trip rod for releasing the brake when the machine is to be started, a collar on the rod, a spring above the collar for depressing the trip rod, a spacing member between the spring and the machine frame having a sliding iit on the rod, an arm fixed on the rod, and an adjustable stop for limiting the downward movement of the rod under the impulse of the spring.

6. In a stopping mechanism, the combination of a power-operated brake for stopping the machinea trip rod extending through a hole in the machine frame, means for operating the rod to release the brake when the machine is to be started, a collar' on the rod, a spring above the collar, and a spacing sleeve having a sliding nt on the rod and a conical upper end engaging the hole in the machine frame -to centralize the rod in the hole.

7. In a stopping mechanism, the combination of a power-operated brake for stopping the machine, a trip rod for releasing the brake when the machine is to be started, a collar on the rod, a spring above the collar for depressing the trip rod, a sleeve located between the vspring and the machine frame, said sleeve having at its lower end a frame-like portion contacting with the spring, an arm Viixedon Vthe rod within said 105 'frame-like portion, and an adjustable stop for limiting downward movement of the rod under the impulse of the spring.

8. In a stopping mechanism, the combination of a power-operated brake for vstopping the '110 machine, a trip rod for releasing the brake when the machine lis to be started, a collar von the rod,

a spring above the collar for depressing the trip rod, a spacing sleeve between the spring and the v machine frame, saidV spacing sleeve contacting '|15 at its lower end with the upper end of the spring, an arm fixed on the rod, the free end of the arm having a slotv adapted to receive a pin secured tothe frame, and an adjustable stop for limiting downward movement of the rod under the impulse of the spring. l

9. In a stopping-mechanism, the combination of a power-operated brake for stopping the machine, a trip rodl for releasing the brake when the machine is to be started, a collar on the rod, a spring above the collar for depressing the trip rod, a spacing member between the spring and the machine frame, an arm xed on the rod, said arm having a slot-and-pin connection with the frame of the machine, and an adjustable stop for limiting downward movement of the rod under the impulse of the spring.- y f 10. In a stopping mechanism, a combination `of a power-.operated brake for stopping the machine, a trip rodv for releasing the brake when the'machine is to be started, a collar Yon the rod,`a spring above 'the collar for depressing the trip rod, a spacing member between the'spring and the machine frame,an arm xed on the rod, said arm having a slot formed in its free end, a '140 pin secured tothe frame and adapted to enter into the slot, and an adjusting screw on the arm extending into the slot for limiting downward movement of the rod under the impulse of the spring.

11. In a stopping mechanism, a column, a head verticallyjadjustable thereon having a powerdriven shaft, an operating instrumentality actuated thereby, a stop mechanism forV arresting rotation of the shaft at a predetermined point in 150 ated thereby, a stop mechanism for arresting rotation of the shaft at a predetermined point in its cycle, a treadle, a trip rod, a roll on the `stop mechanism, a wedge-shaped end on the trip rod contacting with the roll, a releasable connection between the treadle and trip rod, and means for maintaining said wedge-shaped end in operative relation to the roll when said rod isv released from the treadle to permit adjustment of the head.

' i THOMAS H. SEELY.

DISCLAIIVI ER 1,939,321.-Thomas H. Seely, Melrose, Mess. STOPPING MECHANISM. Patent dated December 12, 1933. Disclaimer iled April 8, 1938, by the assignee, United Shoe Machinery Corporation. Hereby enters this disclaimer to claims l, 2, 4, and l1 of Said Letters Patent.

[Oficial Gazette May 10, 1.938.] 

